Granted Patent
Utility
US 5,750,184 · App. 08/574,642
Unitary biological indicator for gaseous sterilants and process
Inventor:
Richard Imburgia
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Dec 19, 1995
Inventor
Richard Imburgia
Assignee (at issue)
Pharmaceutical Systems, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.